Some of you may recall that on the Lexus below, I installed a brand spankin' new set of Lexus F Sport wheels last summer.All has been going well with them. Considering the car only has about 50 k miles the wheels REALLY make the car look MUCH newer than it is.

My problem is with one of my rear tires. I seem to have a SLIGHT leak in it which is causing a 5 PSI leak over a one month period.I've closely followed all the other tires and they all seem to be holding PSI's relatively consistent.I don't think it's the wheels that are are fault, but maybe the bead? or maybe the TPMS? or the tire has a nail in it? Not sure reallyConsidering the leak is so small, I almost doubt I'd be able to find it with soapy water in a spray bottle.

Should I have this tire taken in to have the leak repaired?I could just keep topping it off monthly and in doing so prevent any scratches etc. caused by the tire shop.I'd also save the money since we hardly drive this car at all (about 3k miles per year).

I bet you would find it if you took it off the car and sprayed it with some soapy water or put it in a tank with some water. There is probably a small nail somewhere or a small bead leak. You will find it IF you put in a little time.

I would be looking for a hole. Screws, and nails start off as tiny leaks, then the hardware keeps getting driven in deeper and leak more. Spray it down with soapy water, and it might be obvious where the problem is. Then decide what to do.

I would be looking for a hole. Screws, and nails start off as tiny leaks, then the hardware keeps getting driven in deeper and leak more. Spray it down with soapy water, and it might be obvious where the problem is. Then decide what to do.

Yes, what they said, and add that a rear tire leaking almost always has something in it: the front tire rolls over it and kicks it up.

I would be looking for a hole. Screws, and nails start off as tiny leaks, then the hardware keeps getting driven in deeper and leak more. Spray it down with soapy water, and it might be obvious where the problem is. Then decide what to do.

Yes, what they said, and add that a rear tire leaking almost always has something in it: the front tire rolls over it and kicks it up.

I have fixed hundreds of flats, and more often than not it is the right rear tire. Most of the debris is on the right side of the road, and the front tire stands it up just in time. You run over stuff all of the time and nothing happens. Just try to not hit a bungee cord, they make a mess.

I tubed the rear tires of my mower but one of them failed. Doing the work involved a horrible wrestling match with screwdrivers and crowbars, so when the tube failed I bought two new tires. I’ve only mounted one, and won’t mount the second one until the other tube fails. I just about knocked myself out when a pry bar slipped and whacked me in the head.

When I mounted the new one I couldn’t get the bead sealed. I had to resort to the lighter fluid explosion method to get it seated and I thought it was going to melt itself because the difference between too little fluid and too much fluid is surprisingly small.

In retrospect I would gladly have paid someone to do the work. I have one of those Harbor Freight manual tire mounters, but a mower wheel won’t go over the center post because it just has a 1” hole for a keyed shaft. Mounting tires isn’t for the weak!

Find the leak first. The best way is to remove the wheel and submerge it. There are some rim leaks that will only leak when the car is parked with the bad spot down, so the tire is flexed from the weight. Those are hard to find.